/*
 * Copyright (c) 2010, Jim Hollinger
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of Jim Hollinger nor the names of its contributors
 *     may be used to endorse or promote products derived from this
 *     software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <iomanip>

#include "debughelper/debughelper.h"
#include "logger/logger.h"
#include "logger/loggerfactory.h"


using namespace logger;


/// The singleton instance
volatile Logger *LoggerFactory::singleton = NULL;

/// The singleton mutex
thread::Mutex LoggerFactory::singleton_mutex;

Logger *LoggerFactory::getInstance() {
    static Cleanup _cleanup;

    // double-checked lock
    if (singleton == NULL) {
        thread::Mutex_scopedLock msl(&singleton_mutex);
        if (singleton == NULL) {
            singleton  = new Logger();
        }
    }

    return (Logger *) singleton;
}

void LoggerFactory::cleanup() {
    // double-checked lock
    if (singleton != NULL) {
        thread::Mutex_scopedLock msl(&singleton_mutex);
        delete singleton;
        singleton  = NULL;
    }
}

LoggerFactory::Cleanup::~Cleanup() {
    cleanup();
}
